Constellium SE
CSTM- Exchange
- NYSE
- Industry
- Secondary Smelting & Refining of Nonferrous Metals
- SEC CIK
- 0001563411
In the last 90 days, Constellium SE insiders filed 1 open-market purchase and 0 sales; 389 institutions reported holding it in 13F filings for Q2 2026, worth $3.85B in total; no superinvestor holds it.
Q2 2026 vs. Q1 2026
How the institutions holding Constellium SE changed between Q1 2026 and Q2 2026.
All holders in Q2 2026All holders in Q1 2026
| Measure | Q1 2026 | Of which not filed for Q2 2026 | Q2 2026 | Change |
|---|---|---|---|---|
| Holders | 315 | 8 | 389 | +82 |
| Shares | 126.0M | 604.2K | 121.5M | −3.92M (−3.1%) |
| Value | $3.08B | $14.8M | $3.85B | +$787.8M (+25.7%) |
8 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so the changes leave them out.
New holders (112)
Institutions that held Constellium SE at the end of Q2 2026 but not at the end of Q1 2026.
Showing the largest 100 of 112 by value.
Sold out (30)
Institutions that held Constellium SE at the end of Q1 2026 and filed for Q2 2026 without it.
Not filed for Q2 2026 yet (8)
Institutions that held Constellium SE at the end of Q1 2026 and haven't filed a 13F for Q2 2026. Not filing isn't selling, so they aren't counted as sold out.
| Institution | Shares, Q1 2026 | Value, Q1 2026 |
|---|---|---|
| Janus Henderson Group PLC | 439,301 | $10.8M |
| CWM, LLC | 102,443 | $2.52M |
| DGS Capital Management, LLC | 22,307 | $548.3K |
| Deeter Investments LLP | 19,833 | $487.5K |
| Skopos Labs, Inc. | 17,996 | $442.3K |
| USA Financial Portformulas Corp | 2,253 | $55.4K |
| Sunbelt Securities, Inc. | 29 | $713 |
| Sofos Investments, Inc. | 13 | $320 |